1539-04-4

Usage

Uses

Used in Polymer Industry:
Diphenyl Terephthalate is used as a monomer for the synthesis of block copolymers. Its aromatic structure and ester linkage contribute to the formation of polymers with enhanced mechanical and thermal properties, making them suitable for a wide range of applications.
Used in Material Science:
Diphenyl Terephthalate is utilized as a key component in the preparation of various materials that require differing textures. Its ability to form copolymers with diverse properties allows for the creation of materials with tailored characteristics, such as flexibility, rigidity, and durability, depending on the specific requirements of the application.

InChI:InChI=1/C20H14O4/c21-19(23-17-7-3-1-4-8-17)15-11-13-16(14-12-15)20(22)24-18-9-5-2-6-10-18/h1-14H

Upstream product

• 589-87-7 1,4-bromoiodobenzene 
• 13939-06-5 molybdenum hexacarbonyl 
• 108-95-2 phenol 
• 106-37-6 1.4-dibromobenzene 
• 1864-94-4 phenyl formate 
• 624-38-4 para-diiodobenzene 
• 102-09-0 bis(phenyl) carbonate 
• 100-21-0 terephthalic acid 
• 100-20-9 terephthaloyl chloride 

Downstream Products

• 15517-46-1 1,4-phenylenebis((4-hydroxyphenyl)methanone) 
• 1076-98-8 Thioterephthalic (S)-acid 
• 6315-88-4 1,4-bis-[4-(3-bromo-benzoyloxy)-benzoyl]-benzene 
• 150940-37-7 1,4-bis-(4-acetoxy-benzoyl)-benzene 
• 15517-45-0 1,4-phenylenebis[(4-methoxypheny)lmethanone] 
• 104373-42-4 4-<(3R,4R)-3,4-Bis(diphenylphosphino)pyrrolidinocarbonyl>-N-<3-(triethoxysilyl)propyl>benzamid 
• 104351-47-5 4-<<3-(Triethoxysilyl)propyl>carbamoyl>benzoesaeure-phenylester 

Relevant academic research and scientific papers

Fourier transform Raman spectroscopic study of main-chain thermotropic liquid crystalline polyesters

The Fourier transform infrared and Raman spectra of the semi-flexible main-chain thermotropic liquid crystal polyester, poly(heptamethylene terephthaloyl-bis-4-oxybenzoate) are presented, and tentative band assignments given.The polymer is investigated as a function of its thermal history, and Fourier transform Raman spectra are recorded with temperature using a high-temperature cell.The results are discussed along with calorimetric and X-ray scattering data.Spectral evidence is presented which is related to both the sample crystallinity, and the crystal-to-liquid crystal phase transition.

Mechanistic Insight into Weak Base-Catalyzed Generation of Carbon Monoxide from Phenyl Formate and Its Application to Catalytic Carbonylation at Room Temperature without Use of External Carbon Monoxide Gas

The mechanisms of the weak base-catalyzed generation of carbon monoxide (CO) and phenol from phenyl formate were investigated by experimental and theoretical methods. Kinetic studies revealed a first-order reaction in both phenyl formate and the base. The reaction was found to proceed by an E2 α-elimination pathway, which involves the abstraction of the formyl proton of phenyl formate, simultaneously generating CO and phenoxide. The reaction rate was affected by the substituents on phenyl formate, the polarity of solvents, and the basicity of bases. The mechanistic insight obtained from these studies permitted the chemical control of the rate of CO generation, which was the key to the development of the external CO-free Pd-catalyzed phenoxycarbonylation of haloarenes at room temperature. Because of the mild reaction conditions and wide substrate scope, this phenoxycarbonylation constitutes a general, safe, and practical method to synthesize arenecarboxylic acid esters. (Figure presented.).

1. 4 - b (4 - hydroxybenzene acyl) rectifying section polyetherketoneetherketoneketone copolymer preparation method

The invention relates to a 1,4-dis(4-hydroxyl pyrazolyl)benzene and a preparation method of a polyetheretherketone copolymer, which belongs to the high-molecular material field. The method comprises the following steps: selecting nitrobenzene and tetrachloroethanes as solvents, taking aluminium trichloride as a catalyst for a Fries rearrangement reaction to obtain a 1,4-dis(4-hydroxyl pyrazolyl)benzene monomer, then adding 4,4'-difluorobenzophenone and sulfobenzide in a reaction container equipped with a thermometer, protecting under nitrogen, heating to 160-180 DEG C and adding carbonate, heating to 165-190 DEG C and adding a bisphenol monomer, wherein the bisphenol monomer is a mixture of hydroquinone and 1,4-dis(4-hydroxyl pyrazolyl)benzene, performing a program temperature control reaction to obtain a polymer, and processing to obtain the refined polyetheretherketone random polymer.

Palladium-catalyzed carbonylation of aryl, alkenyl, and allyl halides with phenyl formate

Highly efficient palladium-catalyzed carbonylation of aryl, alkenyl, and allyl halides with phenyl formate is reported. This procedure does not use carbon monoxide and affords one-carbon-elongated carboxylic acid phenyl esters in excellent yields. The reaction proceeds smoothly under mild conditions and tolerates a wide range of functional groups including aldehyde, ether, ketone, ester, and cyano groups. Furthermore, a variety of heteroaromatic bromides can be converted to the corresponding phenyl esters in high yields.

Molybdenum hexacarbonyl mediated alkoxycarbonylation of aryl halides

Mo(CO)mediates the alkoxycarbonylation of aryl halides in their reaction with alcohols to afford arenecarboxylic acid esters. The molybdenum carbonyl complexes act as the catalyst and the source with carbon monoxide. The alkoxycarbonylation proceeds with a small excess of carbon monoxide in the form of Mo(CO)and the procedure is simple compared to the conventional method, which uses palladium catalyst under gaseous carbon monoxide. Using this procedure, a variety of carboxylic acid esters were prepared. Georg Thieme Verlag Stuttgart ? New York.

Synthesis of esters with aromatic structure from aromatic carboxylic acids and diphenyl carbonate

Aromatic esters have been prepared with high to moderate yields from the corresponding aromatic carboxylic acids and diphenyl carbonate in pyridine at reflux (about 140-150 °), 5-6 hours.

Process for the preparation of bis(amidocarboxylic acids)

A process is reported for the preparation of bis(amidocarboxylic acid) involving reacting an ester with an aminocarboxylate compound, the latter being formed from lactams or aminocarboxylic acids and salts thereof. The ester and aminocarboxylate compound are present in a weight ratio of about 1:1 to about 1:4, and reaction is conducted in a mono- or polyhydric alcohol solvent.

Unsymmetrical dicarboxylic esters as bleach precursors

A bleach precursor compound, its peroxygen derivative, and detergent compositions containing these materials are disclosed herein. The bleach precursors structurally comprise a pair of different diesters, one ester containing an electrically-charged functional group. Perhydrolysis of the precursor in the presence of hydrogen peroxide and a basic aqueous media generates a peroxycarboxylic acid.

Synthesis and Thermal Transitions of Some Liquid Crystalline Oligomers

Fourteen aromatic ester oligomers have been synthesised, the majority of which have not been described previously.They can be considered as model compounds for liquid crystalline polyesters, and as such give useful information regarding the relationship between chemical structure and thermal properties.Such oligomers are also potentially important as precursors to liquid crystalline monomers.

Catalysis of ester interchange reaction

Polyester formation is catalyzed by an alkali metal fluoride other than lithium fluoride.